CVE catalog
CVE-2026-33894
Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, RSASSA PKCS#1 v1.5 signature verification accepts forged signatures for l
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.48% · Oct 25, 2026
A flaw was found in Forge (also called `node-forge`), a JavaScript implementation of Transport Layer Security. A remote attacker could exploit weaknesses in the RSASSA PKCS#1 v1.5 signature verification process. By crafting malicious signatures that include extra data within the ASN structure and do not meet padding requirements, an attacker can bypass signature validation. This allows for the creation of forged signatures that appear legitimate, potentially compromising the integrity and authenticity of communications. node-forge: Forge: Signature Forgery via Weak RSASSA PKCS#1 v1.5 Verification The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Cpe | forge | Not reported | 1.4.0 | fixed |
| Cpe | forge | Not reported | 1.4.0 | fixed |
| Ubuntu | node-node-forge | 20.04 | 0.8.5~dfsg-2 | vulnerable |
| Ubuntu | node-node-forge | 20.04 | 0.9.1~dfsg-1 | vulnerable |
| Ubuntu | node-node-forge | 22.04 | 0.10.0~dfsg-3 | vulnerable |
| Ubuntu | node-node-forge | 22.04 | 1.2.1~dfsg-2 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Cpe | forge | cpe | Not reported | 1.4.0 | Not reported | Not reported | Not reported |
| Cpe | forge | cpe | Not reported | 1.4.0 | Not reported | NVD-CVE-2026-33894 | Not reported |
OpenFactory catalog packages
No matching packages in this catalog.
Observed:
References
- [https://access.redhat.com/errata/RHSA-2026:13826]
- [https://access.redhat.com/errata/RHSA-2026:19375]
- [https://access.redhat.com/errata/RHSA-2026:21017]
- [https://access.redhat.com/errata/RHSA-2026:22465]
- [https://access.redhat.com/errata/RHSA-2026:22629]
- [https://access.redhat.com/errata/RHSA-2026:22840]
- [https://access.redhat.com/errata/RHSA-2026:23361]
- [https://access.redhat.com/errata/RHSA-2026:24761]
- [https://access.redhat.com/errata/RHSA-2026:24853]
- [https://access.redhat.com/errata/RHSA-2026:34342]
- [https://access.redhat.com/errata/RHSA-2026:9742]
- [https://access.redhat.com/security/cve/CVE-2026-33894]
- [https://bugzilla.redhat.com/show_bug.cgi?id=2452464]
- [https://datatracker.ietf.org/doc/html/rfc2313#section-8]
- [https://github.com/digitalbazaar/forge/security/advisories/GHSA-ppp5-5v6c-4jwp]
- [https://mailarchive.ietf.org/arch/msg/openpgp/5rnE9ZRN1AokBVj3VqblGlP63QE]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-33894]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-33894]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33894.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1407.json]
- [https://www.rfc-editor.org/rfc/rfc8017.html]
[CERT-Bund public advisories] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]